I don't think anyone is arguing that preventing DDoS attacks is desirable.

It's about cutting off access to a small segment of users just because it is easier that way.

I think that, similar to wheelchair access, we will continue to push for access to all devices and users as much as possible.

This attitude of "it's just 1%" or "it's just 0.1%" will become just as unacceptable as saying "well, there are only 3 people who need access ramps out of 30, so they need to suck it up and deal with it."

It's up to you which side you want to be on.